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雷达系统工程第 8 讲天线第 1 部分-基础知
识和机械扫描
目录
一、简介 ...............................................................................................................................1
1.1 雷达系统框图 ......................................................................................................1
1.2 天线函数和雷达方程.........................................................................................1
1.3 雷达天线有多种尺寸和形状...........................................................................2
二、天线原理 ......................................................................................................................2
2.1 基本概念 ...............................................................................................................2
2.2 场区域....................................................................................................................4
2.3 电磁场方程...........................................................................................................5
2.4 极化.........................................................................................................................6
2.5 天线方向性和增益 .............................................................................................7
2.6 天线输入阻抗 ......................................................................................................8
三、反射天线-机械扫描...................................................................................................9
3.1 基本天线(反射器)特性和几何形状...............................................................9
3.2 溢出和堵塞 ........................................................................................................11
3.3 孔径照明.............................................................................................................13
3.4 不同的反射器饲料和反射器几何 ...............................................................16
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